Lipsius (Opp. tom. iii. Poliorcet, l. iii.) was ignorant of this clear and conspicuous passage of Procopius, (Goth. l. i. c. 21.) The engine was named the wild ass, a calcitrando, (Hen. Steph. Thesaur. Linguae Graec. tom. ii. p. 1340, 1341, tom. iii. p. 877.) I have seen an ingenious model, contrived and executed by General Melville, which imitates or surpasses the art of antiquity.